http://hdl.handle.net/1811/31812 2013-05-24T19:17:10Z http://hdl.handle.net/1811/31921 Back Matter 2005-12-01T00:00:00Z http://hdl.handle.net/1811/31920 Author and Subject Index to Volume 104/Ohio Academy of Science Board of Trustees 2005-12-01T00:00:00Z http://hdl.handle.net/1811/31919 Obituaries of the Members of the Ohio Academy of Science Report of the Necrology Committee, 2005 2005-12-01T00:00:00Z http://hdl.handle.net/1811/31918 Ultrastructure of the Eggs Chorion of Ceraleptus obtusus (Brulle, 1839) (Heteroptera: Coreidae) Candan, Selami; Suludere, Zekiye; Durak, Dilek The eggs of Ceraleptus obtusus were studied with light and scanning electron microscope. The females were collected from the Sinekci mountain pass of Kas (Antalya, Turkey) and maintained under laboratory conditions. The oval shaped eggs averaged 1.35 mm in length and 0.74 mm in width. The eggs were dark brown and mat. The egg chorion surface showed a chorionic pattern resulting in irregular hexagonal patterns. There were 18-19 short pipe micropylar projections mounted at the anterior pole. The egg burster was a chitinous and sclerotized structure. Examination of a cross section of the chorion showed that it was composed of three layers. Author Institution: Dept. of Biology, Gazi University, Turkey; Author Institution: Dept. of Biology, Erciyes Unversity, Turkey 2005-12-01T00:00:00Z Candan, Selami Suludere, Zekiye Durak, Dilek http://hdl.handle.net/1811/31917 Immigration and Economic Restructuring in Ohio’s Cities, 1940-2000 Otiso, Kefa M.; Smith, Bruce W. The purpose of this research is to use Census data to examine trends in employment and the foreign-born among Ohio’s largest cities between 1940 and 2000. The observed trends are linked to economic changes in the cities. In 1940, many Ohio cities attracted significant numbers of foreign-born due to job opportunities in manufacturing. However, since 1940, employment and spatial restructuring has eroded the manufacturing base of most Ohio cities, making them less appealing to the newer immigrant streams. Another change is that Columbus has overshadowed Cleveland as the primary location of the foreign-born population since 1940. Columbus is now more attractive to immigrants because it has a greater concentration of jobs in the growing service and information employment sectors than does Cleveland. Columbus’ large foreign-born population is also partly due to the refugee resettlement policies of the US government, especially in the case of Somalis. Columbus is now the second largest center of Somalis in the US. Ohio cities’ ability to attract immigrants, who are critical to population and economic growth, depends on the cities’ ability to nurture industries that will generate the jobs that will draw immigrants. In addition, some researchers believe that amenities, such as cafes, museums, and diversity, are critical to attract migrants, both domestic and foreign-born. Thus, investments in the cultural environment and human talent cannot be overlooked. Author Institution: Dept. of Geography, Bowling Green State University, OH 2005-12-01T00:00:00Z Otiso, Kefa M. Smith, Bruce W. http://hdl.handle.net/1811/31916 Human Influence Past and Present – Relationship of Nutrient and Hydrologic Conditions to Urban Wetland Macrophyte Distribution Wolin, Julie A.; MacKeigan, Patricia Urban wetlands can provide valuable ecological services through filtration and moderation of non-point source pollutants. They provide habitat for wildlife, green space, and recreational opportunities for nearby human populations. We investigated an isolated section of an urban wetland in the Cleveland metropolitan area to determine the overall quality of the vegetation and to evaluate the site for possible rehabilitation. We also researched the distribution of plant species in relation to existing hydrologic, soil, and nutrient conditions in order to identify possible impacts of historic or present human activities in the surrounding watershed. Vegetation composition and physical/chemical parameters were measured in 1.0 × 1.0 m2 plots along three transects. Canonical correspondence analysis (CCA) was used to directly correlate species distributions to nutrient concentrations, soil carbon content, and water depth. Our sample area was dominated by Typha angustifolia, Leersia oryzoides, and Sparganium eurycarpum. A few high quality species were present, but the overall macrophyte community was indicative of human disturbance. Historic information revealed a long history of disturbance at the site and continuing anthropogenic impact. Patchiness in nutrient and water depth gradients results from historic and current human impacts in the study area. Our results indicate any rehabilitation efforts of the site need to take into account past and current anthropogenic stressors. We recommend aggressive removal of invasive species and re-introduction of nutrient-tolerant native taxa to achieve successful rehabilitation at the site. Author Institution: Dept. of Biological, Geological and Environmental Sciences, Cleveland State University, OH 2005-12-01T00:00:00Z Wolin, Julie A. MacKeigan, Patricia http://hdl.handle.net/1811/31915 Changes in Older and Younger Woods in West-Central Ohio Runkle, James R.; Fairbanks, Lisa A.; Armstrong, Keelan H.; Campbell, Timothy S.; Espenschied-Reilly, Amanda L. This study examines changes in two forest stands in the Quercus-Acer saccharum forest region of west central Ohio: an old-growth stand changing from Quercus-dominated to Acer saccharum-dominated and a stand established following agricultural abandonment about 1950. Both stands are in the Wright State University woods. Permanent plots were sampled in 1980 (younger stand only), 1982 (older stand only), 1993, and 2000. The older stand had more small, fewer intermediate, and more large stems than the younger stand. The plot in the new stand showed a bell-shaped distribution with most stems established shortly after land abandonment. Mortality decreased and growth increased with stem size for both stands. Acer saccharum in all sizes and large Quercus dominated the older stand. The younger stand was dominated by Robinia pseudo-acacia with Acer saccharum also important. In the older plots small stems generally were clustered, intermediate-sized stems randomly distributed, and the largest stems regularly distributed. In the younger plot small stems were aggregated while larger ones were randomly distributed. Quercus regenerated well until the late 1800s, singly or in small groups, but few stems have become established since 1900. Quercus may need fires or grazing to regenerate successfully. Both stands are changing to increased dominance by Acer saccharum and other shade-tolerant species as they lose species (Robinia pseudo-acacia in the younger stand, Quercus in the older stand) more successful under past than present conditions. Author Institution: Dept. of Biological Sciences, Wright State University, OH 2005-12-01T00:00:00Z Runkle, James R. Fairbanks, Lisa A. Armstrong, Keelan H. Campbell, Timothy S. Espenschied-Reilly, Amanda L. http://hdl.handle.net/1811/31912 Floristic Survey of a Highly Disturbed Wetland within Shaker Median Park, Beachwood (Cuyahoga County), Ohio DeLong, Michael K.; Jog, Suneeti K.; Johansen, Jeffrey R.; Wilder, George J. A 1.5 year-long investigation of a highly disturbed suburban wetland revealed 298 species, varieties, and formas of vascular plants, including several taxa uncommon elsewhere in Cuyahoga County. The site exhibited five vegetation subtypes which we compared using several measures including Floristic Quality Assessment Index and Shannon Diversity Index. Historically, the site has been subjected to numerous massive disturbances, but none in a period of 20 years from ca. 1982-2002. Data indicated that the site had recovered partially from disturbance, but was threatened by invasive species. Author Institution: Dept. of Biology, Geology and Environmental Sciences, Cleveland State University, OH; Author Institution: Dept. of Biology, John Carroll University, OH; Author Institution: Division of Ecological Studies, Florida Gulf Coast University, Fort Myers, FL 2005-12-01T00:00:00Z DeLong, Michael K. Jog, Suneeti K. Johansen, Jeffrey R. Wilder, George J. http://hdl.handle.net/1811/31911 Front Matter 2005-12-01T00:00:00Z